GB1144898A - Improvements in and relating to screens - Google Patents

Improvements in and relating to screens

Info

Publication number
GB1144898A
GB1144898A GB3266065A GB3266065A GB1144898A GB 1144898 A GB1144898 A GB 1144898A GB 3266065 A GB3266065 A GB 3266065A GB 3266065 A GB3266065 A GB 3266065A GB 1144898 A GB1144898 A GB 1144898A
Authority
GB
United Kingdom
Prior art keywords
blind
periscope
roller
clip
housing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB3266065A
Inventor
William Thomas Rickets
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to GB3266065A priority Critical patent/GB1144898A/en
Publication of GB1144898A publication Critical patent/GB1144898A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B23/00—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices
    • G02B23/02—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices involving prisms or mirrors
    • G02B23/08—Periscopes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41H—ARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
    • F41H5/00—Armour; Armour plates
    • F41H5/26—Peepholes; Windows; Loopholes
    • F41H5/266—Periscopes for fighting or armoured vehicles

Landscapes

  • Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)

Abstract

1,144,898. Roller blinds. D. M. COWAN and S. P. COWAN [trading as HELIO MIRROR CO.]. 31 Aug., 1966, No. 32660/65. Heading A4B. A screen for obstructing the view aperture 13 of a periscope comprises an opaque, flexible blind 21 secured at one end to a roller 25 spring-biased for rotation and at the other end to a member 22 extending across the width of the blind 21 and provided with a clip 24 arranged to be retained in engagement with anchorage means to hold the blind 21 in a position occulting the aperture 13 by torsion exerted on the clip by the tension in the blind 21 resulting from the spring bias. The roller 25 is mounted behind the lower prism of the periscope with reference to the viewing aperture 13 and is secured at each end 26, 27 to the inner end of a multi-turn spiral spring 28, 29 of which the outer end is anchored to a rotationally adjustable cup member 31, 32. The cup members 31, 32 are retained in pockets formed in side members 18 of the periscope housing 11 by saddles urged against the cup members 31, 32 by screws 35. The blind 21 will normally roll round the roller 25 for storage. To use the screen, the blind 21 is unrolled by means of the clip 24 which is then fastened to anchorage means mounted on the housing 11 above the viewing aperture 13. If desired, the saddles can be replaced by a single shield member which will cover and protect the blind 21 when it is in the stored position. The housing 11 includes a frame 15 by which the periscope can be fastened into the body 16 of a fighting vehicle.
GB3266065A 1965-07-30 1965-07-30 Improvements in and relating to screens Expired GB1144898A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3266065A GB1144898A (en) 1965-07-30 1965-07-30 Improvements in and relating to screens

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3266065A GB1144898A (en) 1965-07-30 1965-07-30 Improvements in and relating to screens

Publications (1)

Publication Number Publication Date
GB1144898A true GB1144898A (en) 1969-03-12

Family

ID=10342075

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3266065A Expired GB1144898A (en) 1965-07-30 1965-07-30 Improvements in and relating to screens

Country Status (1)

Country Link
GB (1) GB1144898A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2295635A (en) * 1994-12-01 1996-06-05 Ernest Geoffrey Harman Retaining means for blinds
EP2113738A2 (en) * 2008-04-29 2009-11-04 Krauss-Maffei Wegmann GmbH & Co. KG Articulated periscope mirror for military vehicles

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2295635A (en) * 1994-12-01 1996-06-05 Ernest Geoffrey Harman Retaining means for blinds
GB2295635B (en) * 1994-12-01 1999-01-13 Ernest Geoffrey Harman Improvements in or relating to blinds
EP2113738A2 (en) * 2008-04-29 2009-11-04 Krauss-Maffei Wegmann GmbH & Co. KG Articulated periscope mirror for military vehicles
EP2113738A3 (en) * 2008-04-29 2013-03-06 Krauss-Maffei Wegmann GmbH & Co. KG Articulated periscope mirror for military vehicles

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